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South America Mountaineering Expeditions

The Andes hold some of the most dramatic high-altitude terrain on the planet, from Aconcagua — the highest peak outside Asia — to Ojos del Salado, the world’s highest active volcano, and the glacial valleys of Peru’s Cordillera Blanca. Our expeditions run with experienced local guides and proven acclimatization schedules, and the O Circuit in Torres del Paine can be done self-guided.

Featured Trips

Torres del Paine W Trek, Patagonia – March 2027

Torres del Paine O Circuit, Patagonia – On request

Aconcagua, Argentina – February 2027

Aconcagua, the highest peak in the Americas at 6,962 meters, is one of the Seven Summits and the ultimate…

Huayhuash Circuit, Peru – May 2027

This journey takes us through some of the most breathtaking landscapes of the Cordillera Blanca in the Peruvian Andes.…

Ojos del Salado, Chile – January 2027

The world’s highest active volcano, located in the Andes, offers a challenging yet rewarding climb, with stunning desert views…

Which South America trip is right for you?

Torres del Paine and the Huayhuash circuit are treks: no summit, just long days through some of the most striking scenery in the Andes. The O Circuit (8 days) goes all the way round the Paine massif in Chilean Patagonia, over the John Gardner Pass, and we organise it self-guided or fully guided on request. The guided W Trek (5 days) links Base Torres, the French Valley and the Grey Glacier, sleeping in mountain refuges. The Huayhuash circuit (15 days) goes all the way round one of the wildest ranges in Peru, over eight passes of up to 5,000 m. For a summit, Nevado Pisco (5,752 m) is a non-technical snow peak in the Cordillera Blanca, and in Bolivia our Pequeño Alpamayo and Sajama trip climbs the highest mountain in the country (6,542 m).

Ojos del Salado (6,893 m, 12 days) and Aconcagua (6,962 m, 19 days) are high-altitude expeditions, where altitude and endurance matter more than technique. Ojos del Salado, the highest volcano in the world, rises out of the Atacama Desert; Aconcagua is the highest mountain outside Asia and one of the Seven Summits.

When to go

Patagonia and the high Andes of Chile and Argentina are summer trips: the O Circuit usually opens from November to late March, Aconcagua’s season runs from November to March and Ojos del Salado is best from January to March. Peru and Bolivia work the other way round: Huayhuash, Pisco and the Bolivian peaks are done in the dry season, from May to September.

Entry, permits and getting there are covered in our guides to Chile, Argentina and Peru.

South America: quick answers

Is the Torres del Paine O Circuit guided?

We organise it self-guided and fully organised, with campsites, meals, park entry and transfers included, or fully guided on request. Travelling with friends or your own group? We’ll tailor it to you.

Can I climb Aconcagua without previous experience?

The Normal Route is not technical, but it is a serious high-altitude expedition. We explain what preparation it takes in Climbing Aconcagua without previous experience.

Aconcagua or Ojos del Salado: which one should I do?

Both are expeditions close to 7,000 m and both reward previous experience at altitude. We compare what each one asks of you in Previous experience for Aconcagua or Ojos del Salado?

When is the best time for the Huayhuash circuit?

The dry season, from May to September, with sunny days and cold nights. Our next departure starts on 29 May 2027.

Torres del Paine W Trek, Patagonia – March 2027

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Torres del Paine O Circuit, Patagonia – On request

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Aconcagua, Argentina – February 2027

Aconcagua, the highest peak in the Americas at 6,962 meters, is one of the Seven Summits and the ultimate high-altitude challenge in the Andes.…

View Project
Huayhuash Circuit, Peru – May 2027

This journey takes us through some of the most breathtaking landscapes of the Cordillera Blanca in the Peruvian Andes. We will start with the…

View Project
Ojos del Salado, Chile – January 2027

The world’s highest active volcano, located in the Andes, offers a challenging yet rewarding climb, with stunning desert views and a peak at 6,893…

View Project